CN117226606A - Small sagittal height meniscus type optical window processing method with inclined table - Google Patents
Small sagittal height meniscus type optical window processing method with inclined table Download PDFInfo
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- 230000003287 optical effect Effects 0.000 title claims abstract description 38
- 230000005499 meniscus Effects 0.000 title claims abstract description 16
- 238000003672 processing method Methods 0.000 title claims abstract description 6
- 238000012545 processing Methods 0.000 claims abstract description 58
- 238000012360 testing method Methods 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 25
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 24
- 239000010432 diamond Substances 0.000 claims abstract description 24
- 238000003754 machining Methods 0.000 claims abstract description 13
- 238000012937 correction Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims description 9
- 238000007688 edging Methods 0.000 claims description 8
- 238000009966 trimming Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims 7
- 239000000463 material Substances 0.000 abstract description 7
- 238000007514 turning Methods 0.000 description 9
- 239000013078 crystal Substances 0.000 description 7
- 238000007516 diamond turning Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 230000009191 jumping Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 229920005027 Ultraform® Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
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Abstract
The application discloses a small sagittal height meniscus type optical window processing method with an inclined table, which comprises the following steps: obtaining a sheet-shaped first blank, and processing the edge of the first blank to obtain a second blank with an inclined table surface and a cylindrical surface; acquiring a first test piece consistent with the second blank configuration, inputting a first initial machining program into a single-point diamond lathe, and machining a convex surface and a concave surface on the first test piece to acquire a first machined test piece; detecting first deviations of the axes of the convex surface and the concave surface on the first processing test piece and the axes of the inclined table surface and the cylindrical surface of the first processing test piece; correcting the first initial machining program according to the first deviation to obtain a first corrected machining program; and inputting the first correction processing program into the single-point diamond lathe, and processing the convex surface and the concave surface on the second blank to obtain a finished optical window. The method can improve the utilization rate of the processing material and reduce the processing cost.
Description
Technical Field
The application relates to the field of ultra-precise numerical control machining, in particular to a small sagittal height meniscus type optical window machining method with an inclined table.
Background
The detector is configured on an unmanned plane and other aircrafts and is used for collecting infrared images of a target scene in high-speed flight, and an optical window with a specific optical function, namely an optical lens with a specific material and configuration, is usually required to be installed in the detector. One type of small sagittal meniscus lens with a ramp (as shown in fig. 2) has found broader application. The upper front and back surfaces of the table are sequentially provided with a convex surface 1 and a concave surface 2, and the edges of the table are sequentially provided with an inclined table top 3 and a cylindrical surface 4. In order to achieve the set optical effect, it is necessary to ensure that the coaxiality of the 4 surfaces meets the set requirement during processing. In the existing processing flow, in order to reduce the processing difficulty, a mode of holding a polishing tool is generally adopted, firstly, the convex surface and the concave surface which are difficult to process are processed, and then, the inclined table surface and the cylindrical surface which are easy to process are processed. However, the above-mentioned method will cause that, when the convex surface and the concave surface are machined, in order to ensure the coaxiality of the convex surface and the concave surface, a large part outside the position of the inclined table surface and the cylindrical surface needs to be reserved on the periphery of the machined blank. Therefore, the reserved redundant parts are required to be cut and removed when the inclined table surface and the cylindrical surface are processed later, so that the waste of materials and the increase of processing cost are caused. In summary, how to increase the utilization rate of the processing material and reduce the processing cost on the premise of ensuring the processing precision has become a problem to be solved in the art.
Disclosure of Invention
In view of the above-described drawbacks or shortcomings of the prior art, it is desirable to provide a small sagittal meniscus optical window machining method with a ramp that can improve the utilization of the machining material and reduce the machining cost.
The specific technical scheme comprises the following steps:
obtaining a sheet-shaped first blank, and processing the edge of the first blank to obtain a second blank with an inclined table surface and a cylindrical surface;
acquiring a first test piece consistent with the second blank configuration, inputting a first initial machining program into a single-point diamond lathe, and machining a convex surface and a concave surface on the first test piece to acquire a first machined test piece;
detecting first deviations of the axes of the convex surface and the concave surface on the first processing test piece and the axes of the inclined table surface and the cylindrical surface of the first processing test piece;
correcting the first initial machining program according to the first deviation to obtain a first corrected machining program;
and inputting the first correction processing program into the single-point diamond lathe, and processing the convex surface and the concave surface on the second blank to obtain a finished optical window.
As a further limitation of the present application, the processing the edge of the first blank to obtain a second blank with a beveled mesa and a cylindrical surface specifically includes the following steps:
acquiring a first test piece consistent with the second blank configuration, and inputting a second initial processing program into a numerical control edging machine;
processing the inclined table surface and the cylindrical surface on the first test piece to obtain a second processed test piece;
detecting a second deviation between the inclined table surface, the cylindrical surface configuration data and the set data on the second processing test piece;
correcting the second initial machining program according to the second deviation to obtain a second corrected machining program;
inputting the second correction processing program into the numerical control edge grinding machine, and processing the inclined table surface and the cylindrical surface on the first blank to obtain the second blank.
As a further limitation of the present application, the detecting the second deviation between the inclined plane surface, the cylindrical surface configuration data and the setting data on the second machined test piece includes the following steps:
detecting the diameter data of the front side circle of the inclined table, the angle of the inclined table and the diameter data of the cylindrical surface on the second processing test piece;
and comparing the data with corresponding setting data respectively to obtain the second deviation.
As a further definition of the application, it further comprises the following steps:
detecting the parallelism of the front surface and the rear surface of the second blank;
comparing the parallelism detection value with a parallelism set value;
and when the parallelism detection value is larger than the parallelism set value, processing the parallelism of the second blank until the parallelism detection value is smaller than or equal to the parallelism set value.
As a further definition of the application, after the obtaining of the second blank with inclined table and cylindrical surface, the following steps are included:
mounting a convex mold corresponding to the convex surface on the optical window on a single-shaft machine;
starting the single-shaft machine, and processing one side of the convex surface on the second blank by utilizing the convex surface die until the thickness of the second blank reaches a thickness set value, wherein the thickness set value is larger than the thickness value of a finished optical window;
replacing the convex mold on the single-axis machine with a concave mold corresponding to the concave surface on the optical window;
and starting the single-shaft machine, and processing one side of the concave surface on the second blank by utilizing the concave surface die until the height loss of the concave surface on the second blank reaches a height loss set value, wherein the height loss set value is smaller than the height loss value of the finished optical window.
As a further limitation of the present application, the machining of the convex surface and the concave surface on the second blank specifically includes the following steps:
fixing the second blank on a first tire holding fixture to form a first assembly;
calibrating the axis of the first assembly and the rotating shaft of the single-point diamond lathe to be collinear;
starting the single-point diamond lathe to process the convex surface on the second blank;
fixing the second blank on a second tire holding fixture to form a second assembly;
calibrating the axis of the second assembly and the rotating shaft of the single-point diamond lathe to be collinear;
and starting the single-point diamond lathe to process the concave surface on the second blank.
As a further definition of the present application, the fixing the second blank to the first tire holding fixture forms a first assembly, including the following steps: trimming the first clamping fixture according to the edge size of the second blank to enable the first clamping fixture and the second clamping fixture to be correspondingly matched, wherein the axis of the first assembly is collinear with the axis of the second blank;
the second blank is fixed on a second tire holding fixture to form a second assembly, and the method comprises the following steps: and trimming the second tire holding tool according to the edge size of the second blank so as to correspondingly match the second blank and the second tire holding tool with the axis of the second assembly and the axis of the second blank are collinear.
The application has the beneficial effects that:
compared with the prior art, the scheme is characterized in that the first blank is firstly obtained, and the inclined table surface and the cylindrical surface of the first blank are processed to obtain the second blank, so that the first blank which is arranged more tightly can be processed according to the actual size of the original blank, and more redundant parts are reserved on the outer side of the first blank without ensuring the alignment of convex surfaces and concave surface axes and the inclined table surface and the cylindrical surface axes. The first debugging piece is adopted to carry out advanced debugging as an alignment mode for ensuring the axes of the convex surface and the concave surface, the inclined table surface and the cylindrical surface, and the axis deviation obtained after the debugging is corrected. Thus, when the inclined table surface and the cylindrical surface on the second blank are processed by the first correction processing program, the collineation degree of the two axes can be ensured to reach the set requirement. In summary, compared with the prior art, the two axes can be conveniently calibrated, processing materials are saved, and processing cost is reduced.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
FIG. 1 is a flow chart of steps of a method for processing a small sagittal height meniscus type optical window with a ramp according to an embodiment of the present application;
FIG. 2 is a schematic diagram of the final structure of the small sagittal meniscus optical window of FIG. 1 with a ramp.
Reference numerals in the drawings:
1. a convex surface; 2. a concave surface; 3. an inclined table top; 4. cylindrical surface.
Detailed Description
The application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the application are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1, a step flow chart of a small sagittal height meniscus type optical window processing method with a sloping table provided in this embodiment is provided, and the small sagittal height meniscus type optical window processing method with a sloping table is characterized by comprising the following steps:
s1: obtaining a sheet-shaped first blank, and processing the edge of the first blank to obtain a second blank with an inclined table surface and a cylindrical surface;
s2: acquiring a first test piece consistent with the second blank configuration, inputting a first initial machining program into a single-point diamond lathe, and machining a convex surface and a concave surface on the first test piece to acquire a first machined test piece;
s3: detecting first deviations of the axes of the convex surface and the concave surface on the first processing test piece and the axes of the inclined table surface and the cylindrical surface of the first processing test piece;
s4: correcting the first initial machining program according to the first deviation to obtain a first corrected machining program;
s5: and inputting the first correction processing program into the single-point diamond lathe, and processing the convex surface and the concave surface on the second blank to obtain a finished optical window.
Compared with the prior art, the scheme is characterized in that the first blank is firstly obtained, and the inclined table surface and the cylindrical surface of the first blank are processed to obtain the second blank, so that the first blank which is arranged more tightly can be processed according to the actual size of the original blank, and more redundant parts are reserved on the outer side of the first blank without ensuring the alignment of convex surfaces and concave surface axes and the inclined table surface and the cylindrical surface axes. The first debugging piece is adopted to carry out advanced debugging as an alignment mode for ensuring the axes of the convex surface and the concave surface, the inclined table surface and the cylindrical surface, and the axis deviation obtained after the debugging is corrected. Thus, when the inclined table surface and the cylindrical surface on the second blank are processed by the first correction processing program, the collineation degree of the two axes can be ensured to reach the set requirement. In summary, compared with the prior art, the two axes can be conveniently calibrated, processing materials are saved, and processing cost is reduced.
The processing of the edge of the first blank to obtain a second blank with an inclined table surface and a cylindrical surface specifically comprises the following steps:
acquiring a first test piece consistent with the second blank configuration, and inputting a second initial processing program into a numerical control edging machine;
processing the inclined table surface and the cylindrical surface on the first test piece to obtain a second processed test piece;
detecting a second deviation between the inclined table surface, the cylindrical surface configuration data and the set data on the second processing test piece;
correcting the second initial machining program according to the second deviation to obtain a second corrected machining program;
inputting the second correction processing program into the numerical control edge grinding machine, and processing the inclined table surface and the cylindrical surface on the first blank to obtain the second blank.
The detecting of the second deviation among the inclined table surface, the cylindrical surface configuration data and the setting data on the second processing test piece comprises the following steps:
detecting the diameter data of the front side circle of the inclined table, the angle of the inclined table and the diameter data of the cylindrical surface on the second processing test piece;
and comparing the data with corresponding setting data respectively to obtain the second deviation.
The method also comprises the following steps:
detecting the parallelism of the front surface and the rear surface of the second blank;
comparing the parallelism detection value with a parallelism set value;
and when the parallelism detection value is larger than the parallelism set value, processing the parallelism of the second blank until the parallelism detection value is smaller than or equal to the parallelism set value.
After the second blank with the inclined table surface and the cylindrical surface is obtained, the method further comprises the following steps:
mounting a convex mold corresponding to the convex surface on the optical window on a single-shaft machine;
starting the single-shaft machine, and processing one side of the convex surface on the second blank by utilizing the convex surface die until the thickness of the second blank reaches a thickness set value, wherein the thickness set value is larger than the thickness value of a finished optical window;
replacing the convex mold on the single-axis machine with a concave mold corresponding to the concave surface on the optical window;
and starting the single-shaft machine, and processing one side of the concave surface on the second blank by utilizing the concave surface die until the height loss of the concave surface on the second blank reaches a height loss set value, wherein the height loss set value is smaller than the height loss value of the finished optical window.
The processing of the convex surface and the concave surface on the second blank specifically comprises the following steps:
fixing the second blank on a first tire holding fixture to form a first assembly;
calibrating the axis of the first assembly and the rotating shaft of the single-point diamond lathe to be collinear;
starting the single-point diamond lathe to process the convex surface on the second blank;
fixing the second blank on a second tire holding fixture to form a second assembly;
calibrating the axis of the second assembly and the rotating shaft of the single-point diamond lathe to be collinear;
and starting the single-point diamond lathe to process the concave surface on the second blank.
The second blank is fixed on a first tire holding fixture to form a first assembly, and the method comprises the following steps: trimming the first clamping fixture according to the edge size of the second blank to enable the first clamping fixture and the second clamping fixture to be correspondingly matched, wherein the axis of the first assembly is collinear with the axis of the second blank;
the second blank is fixed on a second tire holding fixture to form a second assembly, and the method comprises the following steps: and trimming the second tire holding tool according to the edge size of the second blank so as to correspondingly match the second blank and the second tire holding tool with the axis of the second assembly and the axis of the second blank are collinear.
The specific implementation conditions are that
[1] Processing equipment:
the model of the numerical control edge grinding machine is SLC-301 of the company SCHNEIDER in Germany.
The model of the single-shaft machine is BDD-600.
The single point diamond lathe model is Ultraform 350 from Taylor Honson Inc. in UK.
[2] Machining tools:
dish wheel: 330mm diameter solid right angle dish shape, 15mm thickness, granularity D64.
Single crystal diamond turning tool: the front angle is-25 degrees, the radius of the arc is 0.5-1mm, the opening angle of the arc is 90-100 degrees, the contour degree of the rough turning tool arc is 300-500nm, and the contour degree of the finishing tool arc is less than or equal to 100nm.
Single crystal diamond sharp blade: the front angle is 0 degree, the radius of the arc is 0.2mm, the opening angle of the arc is 30-45 degrees, and the contour degree of the arc is less than or equal to 1 mu m.
R300D60 concave grinding die.
R294D60 convex grinding die.
[3] Environmental control requirements:
numerical control edging and rough grinding spherical surface environment control requirements: the temperature is 20-27 ℃ and the humidity is 20-80%.
Single point diamond turning environmental control requirement: the temperature is 21-25 ℃, the temperature change gradient is less than 1 ℃/min, and the humidity is 30-70%.
[4] Instrument and measuring tool:
digital laser interferometer, tool microscope, vernier caliper, thickness gauge, simple sphere diameter gauge, thickness gauge platform, dial indicator, lever dial indicator, 6X magnifying glass, reading magnifying glass, and profilometer.
The processing flow comprises the following steps:
1. numerical control edging
Step 1: the parallelism of two round surfaces of the self-checking sheet blank phi 42mm multiplied by 7.8mm is less than or equal to 0.05mm.
Step 2: 1 glass test piece was prepared in the same specification as the blank.
Step 3: and clamping the glass test knife piece into a numerical control edging machine.
Step 4: programming is carried out on a numerical control edge grinding machine, and the inclined table and the outer circle are ground and formed together. And (3) carrying out numerical control edging processing, namely inputting the diameter of the upper circular surface of the inclined table to 33.67mm, the angle of the inclined table to 90 degrees, and the diameter of the outer circle to 39.8mm, wherein the rotating speed of the grinding wheel is 2000-3000rpm, and the rotating speed of the main shaft is 50-80rpm.
Step 5: the diameter of the upper circular surface of the ramp was measured using a tool microscope and measured at 33.87mm.
Step 6: comparing the diameter measurement value with the theoretical value, and exceeding the resultThe machining program was modified by changing the diameter of the circular surface at the upper side of the input ramp to 33.67mm and 33.57mm with 0.1 mm.
Step 7: and (3) clamping the optical window formal part blank into a numerical control edging machine like a glass test cutter, grinding an inclined table and an outer circle, rotating a grinding wheel at 2000-3000rpm and rotating a workpiece at 50-80rpm, measuring the diameter of the round surface on the upper side of the inclined table by using a tool microscope, and judging whether the diameter meets the tolerance requirement.
Step 8: finishing the inclined table and the cylindrical grinding, and taking down the optical window.
2. Rough grinding spherical surface
Step 1: the R300D60 concave grinding mold was mounted on a single axis machine. The removal amount of the convex spherical surface is about 0.3mm, the total height is controlled to be 6.86 plus or minus 0.05mm, and the jumping amount of the convex surface to the end surface and the excircle is controlled to be 0.05mm.
Step 2: the R294D60 male grinding die was mounted on a single axis machine. The removal amount of the concave spherical surface is less than 0.46mm, and the concave sagittal height is controlled to beThe edge thickness difference is controlled to be 0.05mm.
3. Single point diamond turning
Step 1: and (3) trimming the concave spherical surface and the clamping fixture 1 of the platform according to the size of the blank by using a single crystal diamond sharp knife, and installing the blank into the clamping fixture 1 for clamping and locking.
Step 2: the combined body 1 of the tire holding tool 1 and the blank is arranged on a machine tool, the outer circle jumping amount of the blank is measured by using a lever dial indicator, the position of the combined body is adjusted, and the combined body is centered.
Step 3: and (3) testing a conventional spherical surface tool setting piece with the R/D value of 1, and finishing tool setting of the single crystal diamond turning tool.
Step 4: and programming a machining program of the concave spherical surface and the platform thereof for one-time turning forming, and finishing the machining of the concave spherical surface and the platform thereof by using a single crystal diamond turning tool. The turning comprises two links of rough turning and finish turning, wherein the cutting parameters in the finish turning process are that the spindle rotation speed is 2000rpm, the feeding speed is 2mm/min and the back cutting allowance is 5 mu m. The removal amount is controlled to be 0.2 plus or minus 0.02mm.
Step 5: and (3) detaching the combined body 1 from the machine tool, and taking out the blank from the tire holding tool 1.
Step 6: and (3) measuring the surface shape of the concave surface by using a digital laser interferometer, wherein the surface shape is required to be a spherical aperture N=3 and a spherical local aperture delta N=1, and repeating the steps 1-5 if the surface shape does not meet the requirements.
Step 7: and (3) trimming the clamping fixture 2 for turning the convex spherical surface by using a single crystal diamond sharp knife according to the size of the blank, and mounting the blank into the clamping fixture 2 for clamping and locking by taking a concave platform of the blank as an assembly reference surface.
Step 8: the combined body 2 of the tire holding tool 2 and the blank is arranged on a machine tool, the outer circle jumping amount of the blank is measured by using a lever dial indicator, the position of the combined body is adjusted, and the combined body is centered.
Step 9: and programming a machining program for turning and forming the convex spherical surface, and finishing the machining of the convex spherical surface by using a single crystal diamond turning tool. Cutting parameters are the same as the turning concave spherical surface and the platform thereof. The tolerance of the center thickness is controlled to be 6+/-0.05 mm.
Step 10: and (5) detaching the combination body 2 from the machine tool, and taking out the optical window from the tire holding tool 2.
Step 11: and (3) measuring the convex surface shape by using a digital laser interferometer, wherein the surface shape is required to be a spherical aperture N=3 and a spherical local aperture delta N=1, and repeating the steps 7-10 if the surface shape does not meet the requirements.
The above description is only illustrative of the preferred embodiments of the present application and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the application referred to in the present application is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present application (but not limited to) having similar functions are replaced with each other.
Claims (7)
1. A small sagittal height meniscus type optical window processing method with a sloping platform is characterized by comprising the following steps:
obtaining a sheet-shaped first blank, and processing the edge of the first blank to obtain a second blank with an inclined table surface and a cylindrical surface;
acquiring a first test piece consistent with the second blank configuration, inputting a first initial machining program into a single-point diamond lathe, and machining a convex surface and a concave surface on the first test piece to acquire a first machined test piece;
detecting first deviations of the axes of the convex surface and the concave surface on the first processing test piece and the axes of the inclined table surface and the cylindrical surface of the first processing test piece;
correcting the first initial machining program according to the first deviation to obtain a first corrected machining program;
and inputting the first correction processing program into the single-point diamond lathe, and processing the convex surface and the concave surface on the second blank to obtain a finished optical window.
2. The method for manufacturing a small sagittal meniscus optical window with a diagonal table according to claim 1, wherein the step of manufacturing the edge of the first blank to obtain a second blank with a diagonal table and a cylindrical surface comprises the following steps:
acquiring a first test piece consistent with the second blank configuration, and inputting a second initial processing program into a numerical control edging machine;
processing the inclined table surface and the cylindrical surface on the first test piece to obtain a second processed test piece;
detecting a second deviation between the inclined table surface, the cylindrical surface configuration data and the set data on the second processing test piece;
correcting the second initial machining program according to the second deviation to obtain a second corrected machining program;
inputting the second correction processing program into the numerical control edge grinding machine, and processing the inclined table surface and the cylindrical surface on the first blank to obtain the second blank.
3. The method for manufacturing a small sagittal meniscus optical window with a diagonal table according to claim 2, wherein the detecting the second deviation between the diagonal table, the cylindrical surface configuration data and the setting data on the second manufactured test piece comprises the following steps:
detecting the diameter data of the front side circle of the inclined table, the angle of the inclined table and the diameter data of the cylindrical surface on the second processing test piece;
and comparing the data with corresponding setting data respectively to obtain the second deviation.
4. The method for manufacturing a small sagittal meniscus optical window with a ramp according to claim 2, further comprising the steps of:
detecting the parallelism of the front surface and the rear surface of the second blank;
comparing the parallelism detection value with a parallelism set value;
and when the parallelism detection value is larger than the parallelism set value, processing the parallelism of the second blank until the parallelism detection value is smaller than or equal to the parallelism set value.
5. The method of claim 1, wherein after the step of obtaining the second blank with the inclined mesa and the cylindrical surface, further comprising the steps of:
mounting a convex mold corresponding to the convex surface on the optical window on a single-shaft machine;
starting the single-shaft machine, and processing one side of the convex surface on the second blank by utilizing the convex surface die until the thickness of the second blank reaches a thickness set value, wherein the thickness set value is larger than the thickness value of a finished optical window;
replacing the convex mold on the single-axis machine with a concave mold corresponding to the concave surface on the optical window;
and starting the single-shaft machine, and processing one side of the concave surface on the second blank by utilizing the concave surface die until the height loss of the concave surface on the second blank reaches a height loss set value, wherein the height loss set value is smaller than the height loss value of the finished optical window.
6. The method for manufacturing a small sagittal meniscus optical window with a diagonal table according to any one of claims 1-5, wherein the steps of manufacturing the convex and concave surfaces on the second blank specifically include:
fixing the second blank on a first tire holding fixture to form a first assembly;
calibrating the axis of the first assembly and the rotating shaft of the single-point diamond lathe to be collinear;
starting the single-point diamond lathe to process the convex surface on the second blank;
fixing the second blank on a second tire holding fixture to form a second assembly;
calibrating the axis of the second assembly and the rotating shaft of the single-point diamond lathe to be collinear;
and starting the single-point diamond lathe to process the concave surface on the second blank.
7. The method of manufacturing a small sagittal meniscus optical window with a ramp of claim 6, wherein the securing the second blank to the first hug tooling comprises the steps of: trimming the first clamping fixture according to the edge size of the second blank to enable the first clamping fixture and the second clamping fixture to be correspondingly matched, wherein the axis of the first assembly is collinear with the axis of the second blank;
the second blank is fixed on a second tire holding fixture to form a second assembly, and the method comprises the following steps: and trimming the second tire holding tool according to the edge size of the second blank so as to correspondingly match the second blank and the second tire holding tool with the axis of the second assembly and the axis of the second blank are collinear.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311125291.2A CN117226606A (en) | 2023-08-31 | 2023-08-31 | Small sagittal height meniscus type optical window processing method with inclined table |
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| CN202311125291.2A CN117226606A (en) | 2023-08-31 | 2023-08-31 | Small sagittal height meniscus type optical window processing method with inclined table |
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